Power Electronics By which one of the following we can measure the reliability of a string? Derating factor. String efficient. Reliability factor. Factor of safety. Derating factor. String efficient. Reliability factor. Factor of safety. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics The turn-on time of an SCR with inductive load is 20 µs. The puls train frequency is 2.5 KHz with a mark/space ratio of 1/10, then SCR will Turn on if inductance is removed. Turn on. Not turn on. Turn on if pulse frequency us increased to two times. Turn on if inductance is removed. Turn on. Not turn on. Turn on if pulse frequency us increased to two times. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics The UJT may be used as ___________. A sawtooth generator A rectifier Am amplifier None of these A sawtooth generator A rectifier Am amplifier None of these ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Which triggering is the most reliable? Gate triggering. dV / dt triggering. Forward voltage triggering. Thermal triggering. Gate triggering. dV / dt triggering. Forward voltage triggering. Thermal triggering. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics After peak point, the UJT operates in the ___________ region. Negative resistance Cut-off None of these Saturation Negative resistance Cut-off None of these Saturation ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Delay time is defined by the interval when gate current increases from 90 % to 100 % of its final value. anode voltage drops from 100 % to 90 % of its actual value. all of these. anode current reaches 10 % from forward leakage current. gate current increases from 90 % to 100 % of its final value. anode voltage drops from 100 % to 90 % of its actual value. all of these. anode current reaches 10 % from forward leakage current. ANSWER DOWNLOAD EXAMIANS APP
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